Liquid petroleum gas distributing system



July 31, 1934. J. B. GREEN LIQUID PETROLEUM GAS DISTRIBUTING SYSTEMFiled April 24 1933 2 Sheets-Sheet l Invenlor flllorney July31,1934. VJ,B,GREE- v 1,968,141

LIQUID PETROLEUM GAS DISTRIBUTING SYSTEM Filed April 24. 1953 2Sheets-Sheet 2 1 J v E {1 I 1Ivenzm f1 llomey Patented July 31, 1934UNITED STATES PATENT OFFICE LIQUID PETROLEUM GAS DISTRIBUTING SYSTEM 1Claim.

This invention relates to a method of and means for distributing liquidpetroleum gases, such as propane, the general object of the inventionbeing .to provide means whereby the liquid can be delivered from onetank to another without the use of pumps and other mechanicalmeans. IThis invention also consists in certain other features of constructionand in the combination and arrangement of the several parts, to behereinafter fully described, illustrated in the accompanying drawingsand specifically pointed out in the appended claim.

In describing the invention in detail, reference will be had to theaccompanying drawings wherein like characters denote like orcorresponding parts throughout the several views, and in which:- i

Figure 1 is a diagrammatic view showing how the invention is carriedout.

Figure 2 is a view partly in section and partly in elevation, showingthe receiving or storage tank and the pipes for connecting the same withthe delivery tank.

Figure 3 is a detail sectional view showing how a faucet on a pipe onthe delivery tank is connected to a valve of a pipe leading to thestorage tank.

In these drawings, the numeral 1 indicates the receiving or storage tankfor supplying stoves or other heating units of a building A with gas. Aportion of the pipe line leading from the tank into the building isshown at 2 and contains the valve 3 and the pressure regulator 4. Thistank is also supplied with a gauge, the tube through which a part ofthegauge passes being shown at 5 and the float at 6. Figures 1 and 2 showthe storage tank located underground and these figures also show a pipe7 passing from a point adjacent the bottom of the tank through thetankto a point above the ground where the upper end of the pipe isconnected to a shut-off valve 8. A second pipe 9 has its lower end incommunication with the top of the tank and its upper end is connected toa shut-off valve 10.

The supply tank is shown at 11 and Figure 1 shows this tank as carriedby a truck 12. This tank 11 has a short pipe 12' leading from bottompart and a short pipe 13 leading from its top part, these pipes beingconnected with the valves 14 and 15. Flexible hose 16 and 17 lead fromthese valves 14 and 15 and have the faucets 18 and 19 connected to theirlower ends. These faucets are each formed with a flange 20 at its lowerend which is beveled to engage a beveled seat atthe upper end of a valve8 or 10, as shown in Figure 3, a collar 21 being threaded to' the upperend of the valve and engaging the flange for fastening the faucet to thevalve, as also shown in Figure 3.

Thus when the storage tank is to be refilled from the supply tank, it issimply necessary to make the connections between the faucets 18 and 19and the valves 8 and 10, after which the valves 10, 19 and 15 are openedto permit the pressure above the liquid levels in the twqtanks toequalize and then the valves 14, 18 and8 are opened so that the liquidin the tank 11 will flow into the tank 1 and the air and gases replacedby the liquid flowing into the tank lwill flow into the upper part ofthe tank 11 and thus replace the liquid flowlngfrom said tank 11.

Attention is called to the fact that the pipe 7 extends below the liquidlevel in the tank 1 so 'that the inflowing liquid from the/tank 11 flowsinto the liquid in the tank l, so that'the inflowing liquid is notvaporized as'it would be if delivered into "the tank 1 above the liquidlevel and if the liquid was delivered to the tank 1 above the liquidlevel, there would be danger of freezing or stopping of the inlet at thetank 1.

Thus the invention eliminates the use of pumps and the like for forcingthe liquid from the supply tank into the storage tank and this inventionmakes it possible to refill the storage tanks on premises of users veryeasily and quickly and at a greatly reduced cost to the consumer of thistype of fuel.

t is thought from the foregoing description that the advantages andnovel features of the invention will be readily'apparent.

It is to be understood that changes may be made in the construction andin the combination and arrangement of the several parts, provided thatsuch changes fall within the scope of the appended claim.

What I claim is:-

A gravity distributing system for volatile liquids comprising a storagetank and a portable elevated delivery tank, a pipe having its lower andconnected with the top of the storage tank, a valve at the upper end ofsaid pipe, a second pipe passing through the top of the storage tank toa point adjacent the bottom thereof, a valve at the upper end of saidsecond pipe, a pair of short pipes, containing valves, one connected tothe bottom of the delivery tank and the other to the top thereof abovethe liquid level therein, a hose connected to each short pipe, a faucetconnected to the free end of eachhose and means for detachablyconnecting each faucet to a first mentioned valve.

JAMES B. GREEN.

